How to Get Separate Turn Signals and Brake Lights to Work on a Trailer

Question

Question:

hi i have 2004 ford 350 diesel 6.0 with a 7 pole outlet i build a trailer and i put red for stop amber for turn white for reverse wen i put turn signal red and amber turn on wen i push stop pedal also red and amber turn on and i notice that in the 7 pole wiring diagram stop and turn are the same wire what part do i need to separate the wires in the trailer

asked by: Jorge F

0

Expert Reply:

If your trailer has separate turn signals from the brake lights and you want them to remain that way, you will need to use a special converter. On the trailer side, behind the 7-Way, you will attach the Vehicle to Vehicle Taillight Converter, # 118158. On the 7-Way wiring, locate the wire for the left turn and brake and attach it to the yellow wire on the converter input side. Connect the wire from right turn and stop to the green wire input side. Ground the white wire to the trailer frame.

On the output side that will go to the trailer lights, you will have the yellow wire, which will now be left turn only, the green wire for right turn only, and a red wire for brake lights only. Note that the running light wire is not involved at all.

expert reply by: Michael H

0

John

3/18/2020

I have a seven way Hopkins blade plug that I attached to my car. everything is working properly when I do a voltage test of each individual blade to the ground blade. The vehicle has a separate turn signal indicator. It looks like the running lights and the brake lights use the same bulb. I did not connect the brake light cable. Because I couldn’t figure out which blade it would connect to on the seven way blade.

Chris R.

3/19/2020

Can you tell me what model vehicle the 7-Way is on? Most likely you're going to need to add a converter of some sort to combine those circuits, but I want to make sure I get you the right one (or that something else isn't also needed). We'll get this figured out!

Devin

7/8/2021

@ChrisR Chris, I have the same issue...The brake wire from my truck doesn't have anywhere to connect...If I link it to one of the turn signals it activates the turn signal, if I connect it to the other it activates the turn signal, but if I connect it to both at the same time it interconnects them and both turn signals blink with either right of left signal on from the truck.

Jon G.

7/8/2021

@Devin It sounds like you're needing the Hopkins Tail Light Converter # HM48847 to tie your brake light function in with your turn signals on your truck.

Answer 1

Hi David, I completely understand why you’re asking. Those white knuckle moments are not fun. With the Weigh Safe hitch part #WS29ZR, there unfortunately isn’t a safe way to add a friction sway control “wing” bracket. That adjustable ball mount was…

view full answer...

Answer 2

Since you already have a Blue Ox tow bar you will want the Blue Ox Base Plate Kit item #BLU49FR. This kit is confirmed to fit all models of the 2023 Trailblazer, RS, L, LS, LT, and ACTIV. This base plate has removable arms that will work with most…

view full answer...

Answer 3

Since you already have the Blue Ox Ascent Non-Binding Tow Bar #BX4370 I recommend installing the Blue Ox Base Plate Kit #BLU49FR on your 2023 Chevy Trailblazer Activ. This matches up directly with what you already have and does fit with the Activ…

view full answer...

Answer 4

What I recommend doing is installing a junction box like part #38656 on your trailer 7-Way and then finding a converter like the Curt #C56196 to then connect to the wiring in the converter box and separate out the brake and turn signals for your LED…

view full answer...

Answer 5

You will want to find lights that match the lights you currently have on your trailer. If you have incandescent lights I recommend either staying with incandescent or swapping out all of the lights to LEDs. LED lights draw much less power, so you may…

view full answer...

Answer 6

The Progressive Dynamics Mighty Mini AC/DC Panel and Converter/Smart Charger #PD4045KA is actually the same unit as the PD4045KV. The KV is just an alternate part number for the same unit so this is the one that you want for a replacement.

view full answer...

Answer 7

For your LED Marker Light RV Side Cameras w/ Night Vision for Furrion Vision S Systems #FOS05TASF you will want to follow the wiring as provided below: RED: Connects to positive wire on running lights circuit. BROWN: Will connect to the positive wire…

view full answer...

Answer 8

Hey Richard! To flat tow your 2023 Chevy Trailblazer you will need the following parts: Tow Bar and Safety Chains - Roadmaster Falcon 2 Tow Bar item #RM-520 and item #RM-643 Base Plate Kit - Roadmaster Direct-Connect Base Plate Kit - Removable Arms…

view full answer...

Answer 9

It sounds like you need to replace the tab on your Blue Ox SwayPro where the spring bar inserts into the head. For this you will want the Replacement Locking Pin Kit for Blue Ox SwayPro Weight Distribution System w/ Pre-Adjusted Head #BX84-0176.

view full answer...

Answer 10

It is possible to install a brake controller on your 1998 Toyota T100 pickup, but there are no custom fit wiring adapters available for that truck. The plug you found under the dash is probably not for a brake controller, but you could test the pins…

view full answer...

Answer 11

To tow your trailer that uses an RV style 7-way blade style connector with your semi that has a 7-pin connector, you need to construct an adapter that will also combine the brake signal into the right and left directional signal pins. This can be…

view full answer...

Answer 12

The etrailer A-Frame Trailer Coupler w/ Round Jack Hole #CA-5280-RB uses the standard a-frame angle of 50 degrees. The length from the rear of the coupler to where the coupler meets its narrowest point is approximately 9" long. I have include…

view full answer...

How to Get Separate Turn Signals and Brake Lights to Work on a Trailer

Featured Help Information

Miscellaneous Media

Continue Researching